Canon Slr & Dslr Lenses | Canon 17-40Mm F/4 L Usm Ef Mount Lens {77}

The Canon Ef 17-40Mm F/4 L Usm Is A Professional Grade Wide Angle Zoom Lens. With The Ability To Go From Normal To Ultra Wide Angle Focal Lengths Without Changing Lenses It’S A Great Tool For For Architectural, Landscape, & Street Photographers.

This Lens Features A Plastic Body, Meaning Its Lightweight And Easy To Carry Around For Long Periods Of Time. The Optics Are Very Good Despite The Fact That It’S A Zoom. It Also Features A Constant Aperture Of F/4 Which Is More Than Enough For Daylight Shooting. It Also Features Canon’S Usm (Ultra Sonic Motor) Drive, Which Focuses Quickly And Makes The Lens Nearly Silent.